JPS649825B2 - - Google Patents
Info
- Publication number
- JPS649825B2 JPS649825B2 JP18423580A JP18423580A JPS649825B2 JP S649825 B2 JPS649825 B2 JP S649825B2 JP 18423580 A JP18423580 A JP 18423580A JP 18423580 A JP18423580 A JP 18423580A JP S649825 B2 JPS649825 B2 JP S649825B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- pole
- winding
- phase
- poles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 40
- 239000002356 single layer Substances 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/12—Asynchronous induction motors for multi-phase current
- H02K17/14—Asynchronous induction motors for multi-phase current having windings arranged for permitting pole-changing
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は回転電機において、特に１：10の比に
極数変換可能な３相電機子巻線を備えた極数変換
電動機に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a rotating electric machine, in particular a pole number changer equipped with a three-phase armature winding capable of changing the number of poles to a ratio of 1:10. Regarding electric motors.
（従来の技術）
一般に、工作機械の送り、荷役機械等は、停止
位置精度の向上、停止時におけるシヨツクの緩和
を図るため、高速側から低速側に一旦回転を落と
した後、ブレーキにより制動をかけるようにして
いる。また、高速から低速へ切換え時の誘導電動
機の回生制動を利用する方法が多く用いられてい
る。そしてこの目的の為に、駆動用電動機の回転
数を２段以上に変えることが可能な極数変換電動
機、或いは極数の異なる２台の電動機を用いる等
の方法が採られている。(Prior art) In general, in order to improve stopping position accuracy and alleviate shock when stopped, machine tool feeders, cargo handling machines, etc. are first slowed down from a high speed side to a low speed side, and then are braked. I try to put it on. Furthermore, many methods are used that utilize regenerative braking of the induction motor when switching from high speed to low speed. For this purpose, methods have been adopted such as using a pole number converting motor that can change the rotational speed of the drive motor in two or more stages, or using two motors with different numbers of poles.
しかしながら、まず極数の異なる２台の電動機
を用いる方法では、その据付面積として大きなも
のを要するばかりでなくコイル的にも不利とな
る。一方、極数変換電動機を用いる場合には、上
記の如き用途には一般に１：４とか１：８とかの
大きな速度比を持たせる必要があるため、一個の
電機子鉄心に夫々の極数巻線を施すような手段が
採られている。例えば、２極と20極巻線に対応し
た回転数を必要とする時には一個の電機子鉄心に
２極巻線と20極巻線とを施し、２極で運転する場
合には20極巻線を、また20極で運転する場合には
２極巻線を夫々通電せずに遊ばせておくというよ
うな方法である。しかし、このような方法では電
機子巻線の利用率が悪いばかりでなく、電機子鉄
心の寸法が大きくなつたり、或いは別に新規なス
ロツト数を有する電機子鉄心を製作しなければな
らず、電動機の小形化や価格の面で問題がある。 However, the method of using two electric motors with different numbers of poles not only requires a large installation area but also has disadvantages in terms of coils. On the other hand, when using a pole change motor, it is generally necessary to have a large speed ratio of 1:4 or 1:8 for the above-mentioned applications, so each pole number of turns is required on one armature core. Measures are taken to create lines. For example, if a rotation speed corresponding to 2-pole and 20-pole windings is required, a 2-pole winding and a 20-pole winding are applied to one armature core, and when operating with 2 poles, a 20-pole winding is applied. When operating with 20 poles, the method is to leave each of the two pole windings idle without energizing them. However, with this method, not only the utilization rate of the armature winding is poor, but also the dimensions of the armature core become large, or the armature core must be manufactured with a new number of slots, and the motor There are problems in terms of miniaturization and price.
その一例として、特開昭54−152108号公報に記
載のものがある。この公報には、（高速側の極数）
＋（低速側の極数）＝スロツト数という条件があつ
てスロツト数によつて極数比が１：５或いは１：
８と変化し、極数比１：10を得ようとすればスロ
ツト数が22、44と特殊な電機子鉄心となる。又、
一極一相当りのスロツト数も11/3と分数で且つ二
層同心巻であるので口出線の接続が複雑で結線ミ
スの発生する虞れもある等の問題を含んでいる。 One example is the one described in Japanese Patent Application Laid-Open No. 152108/1983. In this publication, (number of poles on high speed side)
There is a condition that + (number of poles on low speed side) = number of slots, and depending on the number of slots, the pole number ratio is 1:5 or 1:
8, and if you want to obtain a pole number ratio of 1:10, you will need a special armature core with 22 or 44 slots. or,
The number of slots per pole is a fraction of 11/3, and since it is a two-layer concentric winding, the connection of the lead wire is complicated and there is a risk of wiring errors.
本発明は上記のような問題を解決するために成
されたもので、その目的は１種類の巻線で１：10
の一定の大きい極数比を得る電機子巻線を有する
極数変換電動機を提供することにある。 The present invention was made to solve the above-mentioned problems, and its purpose is to achieve a 1:10
It is an object of the present invention to provide a pole number conversion motor having an armature winding that obtains a constant large pole number ratio.
［発明の構成］
（問題点を解決するための手段）
上記目的を達成するために本発明では、３相誘
導電動機の電機子巻線において、単層同心巻で極
数P1極の単層同心巻に巻装され、各相のコイル
は大コイルと小コイルの２個からなり、隣設する
大コイルと小コイルによりコイル群を形成し、こ
のコイル群を接続を変えることにより極性の変わ
る第１のコイル群と極性の変わらない第２のコイ
ル群にし各相共交互に配置して接続変えにより巻
線結線を高速時は２×Ｙ、低速時は１×Ｙにして
P1極×10倍の極数を得る電機子巻線を有するこ
とを特徴とする極数変換電動機である。[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a single-layer concentric winding with a single - pole pole number P in the armature winding of a three-phase induction motor. The coils for each phase are wound concentrically, and each phase consists of two coils: a large coil and a small coil.The adjacent large coil and small coil form a coil group, and the polarity can be changed by changing the connection of this coil group. A second coil group with the same polarity as the first coil group is arranged alternately for each phase, and the winding connection is changed to 2 x Y at high speed and 1 x Y at low speed by changing the connection.
This is a pole number conversion motor characterized by having an armature winding that obtains the number of poles that is 10 times the number of P1 poles.
（作用）
この様な構成にしたので、スロツト数は24、48
と量産品の電機子鉄心を使用しながら、極数比が
１：10と一定の極数変換電動機を得ることができ
る。(Function) With this configuration, the number of slots is 24 and 48.
While using a mass-produced armature core, it is possible to obtain a motor with a constant pole number ratio of 1:10.
又、単層同心巻で一極一相のスロツト数も４と
整数となるので、口出線の接続も単純で結線ミス
もなくなる。 Furthermore, since the single-layer concentric winding has an integer number of slots of 4 for one pole and one phase, the connection of the lead wires is simple and there is no possibility of wiring errors.
（実施例）
以下、本発明の一実施例について図面を参照し
て説明する。なお、ここでは電機子溝数が24個、
極数P1＝２極、P2＝20の極数変換可能な電機子
巻線の場合を例として述べる。第１図は、本発明
による極数変換電動機における３相電機子巻線の
接続構成例を示すものであり、図において実線は
Ｕ相、一点鎖線はＶ相、破線はＷ相コイルを、ま
たU1，U2・V1，V2・W1，W2はＵ・Ｖ・Ｗ相端
子を夫々示すものである。図において、Ｕ，Ｖ，
Ｗの各相コイルはP1（＝２）個に分割されて巻装
され、かつ一相あたり一極分のコイルは大コイル
Ａと小コイルＢの偶数個（２個）から成り、隣設
するもう一方の一相あたり一極分のコイルも大コ
イルA′と小コイルB′の偶数個（２個）から成る。
そして、この大コイルA′と小コイルＢを直列に
接続して第１のコイル群を、大コイルＡと小コイ
ルB′を直列に接続して第２のコイル群を構成し、
これらを各相共交互に配置する。なお、ここで一
相あたり一極分コイルの接続をかえることによ
り、第１のコイル群はその極性がかわりまた第２
のコイル群は極性の変わらないものである。ま
た、第２図ｂは第３図における具体的に結線構成
を示すものである。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. In addition, here the number of armature grooves is 24,
The case of an armature winding in which the number of poles P 1 = 2 poles and P 2 = 20 and the number of poles can be changed will be described as an example. FIG. 1 shows an example of the connection configuration of three-phase armature windings in a pole change motor according to the present invention. In the figure, the solid line indicates the U phase, the dashed line indicates the V phase, and the broken line indicates the W phase coil. U 1 , U 2 ·V 1 , V 2 ·W 1 , and W 2 indicate U, V, and W phase terminals, respectively. In the figure, U, V,
Each phase coil of W is divided into P 1 (=2) pieces and wound, and the coil for one pole per phase consists of an even number (2 pieces) of large coil A and small coil B. The other coil for one pole per phase also consists of an even number (two) of large coil A' and small coil B'.
The large coil A' and small coil B are connected in series to form a first coil group, and the large coil A and small coil B' are connected in series to form a second coil group.
These are arranged alternately in each phase. Note that by changing the connection of the coils for one pole per phase, the polarity of the first coil group changes and the polarity of the first coil group also changes.
The coil group has the same polarity. Further, FIG. 2b specifically shows the wiring configuration in FIG. 3.
かかる如く構成した３相電機子巻線において、
まず高速時は各相端子U2，V2，W2を夫々電源に
接続し且つU1，V1，W1を短絡すると第２図ａに
示す如き２×Ｙ（スター）の結線構成となり、第
１図からわかるように第３図の導体配置となり第
４図に示す如き２極の起磁力分布となる。つま
り、第３図は、２極同心巻に巻装（２極の電機子
溝に収納）された導体の配列を示すものであり、
これは一般に用いられている同心巻電機子巻線の
導体の配置列と変わる所はない。図において、
Ｕ，はＵ相手の導体を示しはＵと反対方向の
電源の向きになることを示す。Ｖ，及びＷ，
はＶ及びＷ相を示し，は夫々Ｖ，Ｗと反対方
向の電流の向きになることを示す。また、第４図
は第３図の巻線配置におけるＵ相電流が１で、
Ｖ、Ｗ相電流が夫々−１／２の値になる瞬時の起
磁力分布を示したもので２極の起磁力となる。 In the three-phase armature winding configured as described above,
First, at high speed, connect each phase terminal U 2 , V 2 , W 2 to the power supply and short-circuit U 1 , V 1 , W 1 , resulting in a 2×Y (star) connection configuration as shown in Figure 2a. As can be seen from FIG. 1, the conductor arrangement shown in FIG. 3 results in a two-pole magnetomotive force distribution as shown in FIG. In other words, Figure 3 shows the arrangement of conductors wound around two-pole concentric windings (stored in the two-pole armature grooves).
This is no different from the arrangement of conductors in commonly used concentric armature windings. In the figure,
U, indicates the conductor opposite U, and indicates that the power source is oriented in the opposite direction to U. V, and W,
indicates the V and W phases, and indicates that the current direction is opposite to that of V and W, respectively. In addition, in Fig. 4, the U-phase current in the winding arrangement shown in Fig. 3 is 1,
This shows the instantaneous magnetomotive force distribution in which the V and W phase currents each have a value of -1/2, which is a two-pole magnetomotive force.
一方、低速時は各相端子U1，V1，W1を夫々電
源に接続し且つU2，V2，W2を開放すると第２図
ｂに示す如き１×Ｙ（スター）の結線構成となり、
この場合の導体の配置は第５図に示すようにな
り、またその起磁力も２極の時と同様にＵ相手電
流が１でＶ、Ｗ相が夫々−１／２の値になる瞬時
をとると第６図に示すように20極となる。 On the other hand, at low speeds, if each phase terminal U 1 , V 1 , W 1 is connected to the power supply and U 2 , V 2 , W 2 is opened, a 1×Y (star) wiring configuration as shown in Figure 2b is created. Then,
The arrangement of the conductors in this case is as shown in Figure 5, and the magnetomotive force is the same as in the case of two poles. This results in 20 poles as shown in Figure 6.
上述したように、本実施例の極数変換電動機で
は、単層同心巻で極数P1（＝２）極の単層同心巻
に巻装され、各相のコイルはP1（＝２）個に分割
されかつ一相当り一極分のコイルは大コイル及び
小コイルＡとＢ，A′とB′の２個からなり、その
一相当り一極分コイルのうち接続を変えることに
より極性の変わる第１のコイル群A′，Ｂと極性
の変わらない第２のコイル群Ａ，B′を各相共交
互に配置して接続変えによりP1極×10倍の極数
を得る電機子巻線を有するようにしたものであ
る。 As mentioned above, the pole number changing motor of this embodiment is wound with a single layer concentric winding having a number of poles of P 1 (=2), and the coil of each phase has a number of P 1 (=2) poles. The coil, which is divided into individual parts and has one pole per part, consists of two large coils and small coils A and B, A' and B', and the polarity can be changed by changing the connection of the one pole per part coil. An armature in which a first coil group A', B whose polarity changes and a second coil group A, B' whose polarity does not change are arranged alternately for each phase, and by changing the connections, the number of poles is 10 times P1 . It has a winding.
従つて、第１のコイル群の通電方向を反転させ
ることでP1極（２極）の10倍の極数P220極を得
る。すなわちP1：P2＝２：20＝１：10の高比率
の極数比を１巻線の接続を変えることにより得る
ことが可能となる。もつて、巻線を極めて有効的
に利用してその無駄をなくすると共に、電機子鉄
心の寸法を小さくして結果的に従来の２段巻線極
数変換電動機より電動機自体の小形化を図ること
ができ、且つスロツト数は24と量産品の電機子鉄
心を使用できることも合わせて経済的に有利なも
のが得られる。また、小さい方の極数の巻線は従
来の同心巻と同様の方法にて極めて容易に製作す
ることができるものである。更に、極数比が１：
10と高比率となるため、高速から低速に切換え回
生制動を利用することができ工作機や送り用の電
動機として極めて有利である。 Therefore, by reversing the current direction of the first coil group, the number of poles P 2 is 20, which is 10 times the number of poles P 2 (2 poles). That is, a high pole ratio of P 1 :P 2 =2:20=1:10 can be obtained by changing the connection of one winding. As a result, the windings are used extremely effectively to eliminate waste, and the dimensions of the armature core are reduced, resulting in a smaller motor itself than the conventional two-stage winding pole number conversion motor. In addition, the number of slots is 24, and the fact that a mass-produced armature core can be used makes it economically advantageous. Further, the winding having the smaller number of poles can be manufactured very easily in the same manner as the conventional concentric winding. Furthermore, the pole number ratio is 1:
Since it has a high ratio of 10, it is possible to switch from high speed to low speed and use regenerative braking, making it extremely advantageous for machine tools and feed motors.
又、一極一相当りのスロツト数ｑ＝24／（３×
２）＝４と整数であると共に、単層同心巻である
から口出線の接続も単純で結線ミスがなくなる。 Also, the number of slots per pole q=24/(3×
2) = 4, which is an integer, and since it is a single layer concentric winding, the connection of the lead wire is simple and there are no wiring mistakes.
尚、本発明は上記実施例に限定されるものでは
なく、次のようにしても実施することができる。 It should be noted that the present invention is not limited to the above embodiments, but can also be implemented in the following manner.
(1) 上記実施例ではP1＝２極、P2＝20極鉄心の
スロツト数が24個の場合について述べた。しか
し、これに限らずその他の例えば、P1＝４極、
P2＝40極鉄心スロツト数が48個等のものにつ
いては、上記スロツト数24個の場合（第１図）
のスロツトNo.１〜24の巻線配置のものをもう一
組スロツトNo.25〜48へ配置し、第１及び第２の
コイル群の後はスロツトNo.14→25→36→47→38
→中性点で第３のコイル群を、スロツトNo.11→
48→37→26→35→U1端子で第４のコイル群を
形成する。そして、高速時は２×Ｙ、低速時は
１×Ｙの巻線結線をするので、スロツト数24個
の場合の単に２倍して同様の作用効果が得ら
れ、結線図及び展開図への表示は省略する。(1) In the above embodiment, the case where P 1 = 2 poles and P 2 = 20 poles and the number of slots in the core is 24 has been described. However, this is not limited to this, and other examples include P 1 = 4 poles,
For P 2 = 40-pole iron core with 48 slots, etc., the above number of slots is 24 (Figure 1)
Place the windings in slots No. 1 to 24 in slot Nos. 25 to 48, and after the first and second coil groups, place the coils in slots No. 14→25→36→47→38.
→Insert the third coil group at the neutral point, slot No.11→
48→37→26→35→U 1 terminal forms the fourth coil group. Since the winding connection is 2 x Y at high speed and 1 x Y at low speed, the same effect can be obtained by simply doubling the number of slots with 24 slots. Display is omitted.
［発明の効果］
以上説明したように本発明によれば、１種類の
巻線で１：10の一定の極数比を得る電機子巻線を
有する極めて信頼性の高い極数変換電動機が提供
できる。[Effects of the Invention] As explained above, according to the present invention, an extremely reliable pole change motor having an armature winding that obtains a fixed pole number ratio of 1:10 with one type of winding is provided. can.
第１図は本発明の一実施例を示す巻線展開図、
第２図ａ，ｂは接続図、第３図は２極の巻線配置
図、第４図は２極の波形図、第５図は20極の巻線
配置図、第６図は20極の波形図である。
Ｕ，Ｖ，Ｗ……３相各相、U1，U2，V1，V2，
W1，W2……各相端子、Ａ，Ｂ，A′，B′……コイ
ル。
FIG. 1 is a developed winding diagram showing an embodiment of the present invention;
Figure 2 a and b are connection diagrams, Figure 3 is a 2-pole winding layout diagram, Figure 4 is a 2-pole waveform diagram, Figure 5 is a 20-pole winding layout diagram, Figure 6 is a 20-pole winding diagram. FIG. U, V, W...3 phases, U 1 , U 2 , V 1 , V 2 ,
W 1 , W 2 ...each phase terminal, A, B, A', B'...coil.
Claims (1)
同心巻で極数P1極の単層同心巻に巻装され、各
相のコイルはP1個に分割されかつ一相当り一極
分のコイルは大コイルと小コイルの２個からな
り、隣設する大コイルと小コイルによりコイル群
を形成し、このコイル群を接続を変えることによ
り極性の変わる第１のコイル群と極性の変わらな
い第２のコイル群にし各相共交互に配置して接続
変えにより巻線結線を高速時は２×Ｙ、低速時は
１×ＹにしてP1極×10倍の極数を得る電機子巻
線を有することを特徴とする極数変換電動機。1. The armature winding of a three-phase induction motor is wound in a single-layer concentric winding with a number of P poles, and each phase coil is divided into P 1 pieces , with one pole per phase. The coil consists of two coils, a large coil and a small coil, and the adjacent large coil and small coil form a coil group, and by changing the connection of this coil group, the polarity changes with the first coil group. Arrange the second coil group alternately in each phase and change the connections to make the winding connection 2 x Y at high speed and 1 x Y at low speed to obtain P 1 pole x 10 times the number of poles. A pole change electric motor characterized by having a winding.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18423580A JPS57110059A (en) | 1980-12-25 | 1980-12-25 | Pole change motor |
| US06/331,271 US4403160A (en) | 1980-12-25 | 1981-12-16 | Pole change type motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18423580A JPS57110059A (en) | 1980-12-25 | 1980-12-25 | Pole change motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57110059A JPS57110059A (en) | 1982-07-08 |
| JPS649825B2 true JPS649825B2 (en) | 1989-02-20 |
Family
ID=16149734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18423580A Granted JPS57110059A (en) | 1980-12-25 | 1980-12-25 | Pole change motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57110059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102136026B1 (en) | 2019-04-03 | 2020-07-20 | 한국전력공사 | Combined structure of variable-capacity transformer structure using ferrite core for magnetic flux assistance and method for manufacturing the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030089141A (en) * | 2002-05-16 | 2003-11-21 | 삼성전자주식회사 | Three-phase motor & Wire winding method for three-phase motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54152108A (en) * | 1978-05-22 | 1979-11-30 | Yaskawa Denki Seisakusho Kk | Winding for pole change motor |
-
1980
- 1980-12-25 JP JP18423580A patent/JPS57110059A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102136026B1 (en) | 2019-04-03 | 2020-07-20 | 한국전력공사 | Combined structure of variable-capacity transformer structure using ferrite core for magnetic flux assistance and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57110059A (en) | 1982-07-08 |
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